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Finding the Fourth Proportional to 110,405.40, 165,608.10 and 99,000.60

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Solution

The fourth proportional to 110,405.40, 165,608.10 and 99,000.60 is: 148,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,405.40 : 165,608.10 = 99,000.60 : x
  2. Step 2: Convert to fraction form
    110,405.40/165,608.10 = 99,000.60/x
  3. Step 3: Cross multiply
    110,405.40x = 165,608.10 × 99,000.60
  4. Step 4: Simplify right side
    110,405.40x = 16,395,301,264.86
  5. Step 5: Solve for x
    x = 16,395,301,264.86/110,405.40
  6. Step 6: Final answer
    x = 148,500.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.